C. Analysis, Balance
and Distribution of Harms and Benefits
C1. Minimal Risk
The standard of minimal
risk is commonly defined as follows: if potential subjects can reasonably
be expected to
regard the probability
and magnitude of possible harms implied by participation in the research
to be no greater than
those encountered by
the subject in those aspects of his or her everyday life that relate to
the research then the
research can be regarded
as within the range of minimal risk. Above the threshold of minimal risk,
the research
warrants a higher degree
of scrutiny and greater provision for the protection of the interests of
prospective subjects.
There is a similar threshold
regarding undue or excessive offers of benefit. As an offer of payment
in relation to
research participation
exceeds the normal range of benefits open to the research subject, it is
increasingly likely to
amount to an undue incentive
for participation (see Section 2B).
This concept of minimal
risk raises special issues in clinical research, especially clinical trials,
in which patients
suffering from disease
participate in research on interventions undertaken for purposes of therapy.
In such research,
the procedures to which
the subject is exposed may be either directly required for the therapy
that the patient is
undergoing for illness,
or they may be undertaken because extra actions (for example, more X-rays,
blood samples,
colonoscopies) are needed
for proper analysis of the therapy. Hence, risks in clinical trials can
be described as either
therapeutic or non-therapeutic.
In some areas of treatment
(for example, surgery, chemotherapy or radiation therapy), the treatments
themselves are
known to pose considerable
risks of harm. Such therapeutic risks may be regarded as within the range
of minimal
risks for patient-subjects,
since they are inherent in the treatment that the patient will be undergoing
as a part of his or
her current everyday
life. Adherence to the principle of clinical equipoise1 (see Section 7)
requires that the fundamental
ethical consideration
in the decision to expose patients to experimental procedures derives from
the premise that the
interventions being tested
are not different in terms of the anticipated balance between their harms
and benefits.
Hence, the idea that
considerable anticipated therapeutic risks might also be within the range
of minimal risks extends
to the therapies in the
trial.
This consideration does
not apply to non-therapeutic risks, which arise from actions that go beyond
the needs of the
subject as a patient,
and that are incurred only for the needs of the research. REBs should be
sensitive to this
distinction for all research
projects. They should recognize the need to minimize harms, and to ensure
that these
harms are proportionate
to the benefits that might be expected from the knowledge gained from the
study. For projects
that involve both therapeutic
and non-therapeutic risks, the risks that are required for therapy as opposed
to research
need to delineated.
C2. Scholarly Review as Part of Ethics Review
Article 1.5
a.The REB
shall satisfy itself that the design of a research project that poses more
than minimal risk is
capable of addressing the questions being asked in the research.
b.The extent
of the review for scholarly standards that is required for biomedical research
that does not
involve more than minimal risk will vary according to the research being
carried out.
c.Research
in the humanities and the social sciences which poses, at most, minimal
risks shall not
normally be required by the REB to be peer reviewed.
d.Certain
types of research, particularly in the social sciences and the humanities,
may legitimately have
a negative effect on public figures in politics, business, labour, the
arts or other walks of life, or on
organizations. Such research should not be blocked through the use of harms/benefits
analysis or
because of the potentially negative nature of the findings. The safeguard
for those in the public arena
is through public debate and discourse and, in extremis, through action
in the courts for libel.
Traditions for scholarly
and ethical review undertaken vary between disciplines. The following mechanisms
are among
those that should be
considered by the REB. The REB may:
conclude that the proposed research has already passed appropriate peer
review, for example by a funding
agency;
establish an ad hoc independent external peer review;
establish a permanent peer review committee reporting directly to the REB;
assume complete responsibility for the scholarly merit, which would require
that it have the necessary scholarly
expertise in the discipline to carry out peer review of the research in
question.
REBs should normally avoid
duplicating previous professional peer-review assessments unless there
is a good and
defined reason to do
so. However, they may request the researcher to provide them with the full
documentation of
those reviews.
In evaluating the merit
and the scholarly standards of a research proposal, the REB should be concerned
with a global
assessment of the degree
to which the research might further the understanding of a phenomenon,
and not be driven
by factors such as personal
biases or preferences. REBs should not reject research proposals because
they are
controversial, challenge
mainstream thought, or offend powerful or vocal interest groups. The primary
tests to be used
by REBs should be ethical
probity and high scientific and scholarly standards.
Article 1.5(d) reflects
the tradition in the humanities and the social sciences for researchers
to publish their results and
then debate with their
readers and reviewers the merits of what they have written. In the context
of harms and benefits
to research subjects,
prior to starting the research the risks of censorship of ideas through
peer review do not seem
justified. Nothing in
this section, however, shall be interpreted to mean that other relevant
parts of this Policy, such as
the need for REB review,
interview protocols, free and informed consent and privacy are not applicable
to their
research.